This term is used to describe the embarrassing event in which a male reaches his climax, causing him to ejaculate. When he checks to see his jizz, there is nothing there, as if he ejaculated nothing but a ghost.

Mary: How was the sex last night?
Sarah: oh, it was horrible, he had ghost jizz.

1. when one is eating, usually fast food and spills some of the sauce on their pants and creates a light stain around the crotch making it look like dried jizz
2. a crotch stain cause by food that makes it look like you jizzed on yourself

"dude did you cum on yourself"
"nah man i just ate subway and it ghost jizzed on me"

The seepage of spooge deep from within a woman's vagina following a man’s liberation of his juices within the snatch, after a couple or more hours have elapsed, even overnight...all of a sudden...BAM!!!

As Farrah walked down the hall, she had to run into the bathroom after the ghost jizz her husband, Garrett, had deposited the night before oozed out.